Traction-wheel



F. YOUNGGREN.

TRACTION WHEEL.

APPLICATION FILED APR-26.1915.

1,93,957 PatentedAug. 8,1916.

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F. YUUNGGREN.

THAcTloN WHEEL` APPLICATION FILED APILZG. 1915.

1 1 93,957 Patented ug.. 8, 1916.

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F. YOUNGGREN.`

TRAcmN WHEEL.

PPLICATION FILED APR-25,1915.4 l 1 93,957 Patented Aug. 8, 1916.

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FREDERICK YOUNGGREN, OFRIVER FALLS, WISCONSIN.

TRAcTIoN-WHEEI..

Specification of Letters Patent.

Patented Aug. 8, 1916.

Application filed April 26, 1915. Serial No. 23,978.

tion wheel vparticularly adapted to be used as a' single traction wheel which shall be fitted with radial movable bars in combination with means for moving said bars to cause the same to be projected. and retracted from the bearing surface o f the wheels. My invention also provides novel means for connecting the bars to the wheel-and the wheel supporting means, and means for adjustingsaid connecting means so that the bars may be projected to a greater or less degree andv may be projectedeither entirely to one side of the wheel or entirely to the other side of the wheel, or` may not be projected at vall but carried about the wheel in a uniform extended condition. l

The full objects and advantages of my invention will appear inv connection with the detailed description thereof, and are particularly pointed out in the claims.

In the drawings, illustrating my invention in one form, Figure 1 is a side elevation of a portionof a single traction wheel on a traction engine having my traction wheel attached thereto. Fig. 2 is a plan view of the same with some parts broken away. Fig. 3 is a sectional detail view taken along the aXle of vone side of the wheel. Fig. 4 is a part sectional view taken through a portion of the tire. Figs. 5 and 6 are vpart sectional fragmentary views showing the manner of mounting the transverse tire plates in relation to the' mud-lug plates. Y

Asillustrated inFig. 2,*frame members 10 and 11 of al traction engine provided with a single traction wheel -are shown'. This traction wheel consists of tire bands 12 and 13 upon which are bolted a plurality of transverse plates 14-15, a space 16 being left between each pair of transverse plates. The tire bands and plates'a-re secured to the wheel hub 17 by' means of spoke' arms 18 in a well known way. As clearly shown in Figs. 5 and 6, the plates 14 and tire rings 12 and 13 are provided with a plurality of registering holes 19 and the tire rings 12 .and 13with a plurality of holes 20 at the yside ofthe plates 14. The plates 15 have a flange lip 21 which engages the tire rings 12 and 13 and holds the surfaces of said Yplates parallel with the surfaces of plates 14, while part of the lower surface of plates 15 rests upon plates 14, being secured thereto by bolts 22. It is thus apparent that the plates 15 .may be moved or adjusted along the t1re rings 12 and 13 so as to make the opening 16 between the same greater or less asmay be desired.

The hub 17 is journaled upon an axle 23 which is mounted in boxes 24 carried by the frameA members 10 and 11. Upon frame members 10 and 11 are a pair of stands 25 and 26 upon which is journa-led a transverse shaft 27 having secured to the ends thereof arms 28 and 38. Pivotally connected to x each of the arms 28 and 38 is a link 29 Awhich is attached to an eye 30 of a block 31 formed with an elongated cent-ral aperture 32 which straddles the shaft 23. There are thus two of these blocks, one on each l side the traction wheel and its hub 17, and

the blocks are equally suspended from the frame members through the stands above referred to by the links 29. The block 31 are slidably held in position adjacent the frame members 10 and 11 by means of pairs of clamps 32 and 33 which engage over flanges 34 and 35 formed on the sides of said block.

- The clamping pieces 32 and 33 are extended -pin 39 being restrained from movement through bulge 37 by' a key 40. A strong compression spring 41 surrounds pin 39 and the arm 38. In this' manner, the lever is connected through arm 38 with shaft 27 and` operation of the lever will serve to lift the pieces31 and parts carried thereby, said pieces being yieldingly restrained from movement in the opposite direction by the spring 41. A ratchet segment 42 with lis iso

groove registering over the flange 44 which groove is formed by a flange extension 46 on one side of the ring and aremovable'v ring extension 47 atV the other side which permits assembling of'the parts. A thirdv kring 48 may also be employed and'between rings 45 and 48 are pivotally connected a Yseries of arms 49V and 50 onv the respective sides of the hub 17. It' will' be noted that the disks 46 are brought in close to the endsV of hubs 17 andwell underY the tire rings 12. and 13. Y. The arms 49 and 50-arecurved inwardly, as indicated at 51 in llig.r 2, yand are rigidly secured atr their ends to the inner edges of plates 52 whicliare adapted to be v projected through the spaces 16 between the tireV plates 14 and 15.V As shown inl Figs. 5 and 6, the arms 49and 50 are securedto plates 52 by meansrof splicing platesl 53 riveted'and bolted to boththe plates 52 and the arms 49 and 50. Theplates 52 are provided at theiredges with lug extensions 54 to which are pivotally connected links 55,- said links in turn being pivoted at 56 Yto standards 57 rigidly connected with tire rings 12 and 13. As shown in Figs. 1 and: 3Y there may be, if desired, brace rods 5S and'59 running from ring 45 to some of the arms 50 and pivotally connected at theirends with the ring 45 and with the rods 50, thus additionally strengthening the action of said rods.

The axle 23 is a live axle `driven in a well known way from a shaft 60 connected thereto by bevel gearlngs 61 and l62.

The operation of my device may be readily gathered from the description "above given. By means of the lever 36 the pieces 3l may be positioned so that ythe axial center of the ring 45 carried thereby will be Y concentric with the axial center of the axle 23, or so that ring 35 willv bel eccentricto said axis 23 either above or below the same.

When the centers of the ring 45 is concentric to axle 43 the arms 49 and V5() will hold the plates 52 so that Vthe same will be projected uniformly through the openingsv be unequally projected through the tire face openings 16, the plates being at their maximum projection at the bottom of the wheel where the face thereof engages the yearth and at the minimum projection' at the top. On the other hand by lifting the pieces 31 v*so as to bring the center of ring 45 above axle 23, the minimum projection| of the plates 52 will vbe at the bottom. It is ob- Y vious that the members 3l may be raised Y sufficiently toentirelyy withdraw the plates at the bottom as thevwheel rotates so that where Vthe traction engine is being driven overV hard roads or pavements, the plates will be'taken out of operation.V When the ring 45 is eccentric either above or below the axle 23 the plates 52 as they are' projected will tra-Velin a-gyratory path due to 'Y the connection by the links 55 withthe tire rings. This movement -isvparticularly effective in cleaning dirt fromthe plates.` In fact,l it would beximpossible for; an accumulation of mud-ordirt to` takelplace in this construction. Furthermore,'-the` connection of the plates 52 directly Vto ,thetire';.ringsV tothe ground vthrough plates52 ina. highly l eliicient mannerY which will not bind-.6r in-f duces no` friction oscillating 'theplates e and ldoesnotincrease-materially the power" required in' dri-ving theV Wheel by. reason of the-projection and retraction Yof the* ground engaging plates.

IY claim: l. lIn combination wheel Yand frame members on veach sideV Vthereof and .the-axle of; the traction wheel?y journaled therein, said tractionwheel having its face formed with transverse slots, a block mounted to slidegverticallykon each side of said frame Amembers each of said blocks having-ai vertical slot 'through whichv Vthe axle extends, a rotatable ring jo'urnale'd roo . centric` to said axle or eccentric tothe same A eitheraboveor below ther/axle, links pivot-V ally connected with the Wheel rim, tractionV plates extending through said slots 'pivotallyconnected-'withjthe links, and rods rigidly secured to the traction plates and pivotally connected with said rings.V

2. A traction wheel comprising a' hub,

a pair of tirerings; spokes securing saidV tire rings to the. hub, transverse plates se`,

. cured to said tire ringsV and .spaced apart the plates and tire rings, links having a'V pivotal connection Vwithfsa'id tirel rings, traction Vplates extending through saidl slots having pivotal connection with the links, and means connected with the plates and rotatable with the wheel for projecting and retracting the traction plates.

3; A traction wheel comprising a hub, a pair of tire rings, spokes securing said tire at intervals to leave transverseslots between f f rings/Y to ,the hub,transverse plates secured vto said tire rings and spaced apart at in# tervals to leave transverse slots between the 10 may be projected a greater or less degree either from the top or the bottom of the Wheel or may be projected equally throughout the circumference of the Wheel.

In testimony whereof I aiX my signature in presence of two Witnesses.

FREDERICK YOUNGGREN.

Witnesses F. M. WHITE,

PEARL PETERSON.

Copies of this patent may be obtained for ve cents each, by addressing the Commissioner of Patents, Washington, D. C. 

